PHYSICA ZUK SURGICAL TECHNIQUE
Step 4 | Femoral Sizing
STEP 4 FEMORAL SIZING There are seven sizes of femoral implants and corresponding sizes of Femoral Cutting Guides (A - G). The outside contour of the Femoral Cutting Guides matches the contour of the trial and the final implant. Insert the Femoral Trial Positioner into the corresponding lugs of the appropriate left or right Femoral Cutting Guide (Fig. 27) and close the lever. Insert the foot of the Femoral Cutting Guide into the joint and rest the flat surface against the distal femoral condyle. (Fig. 28) Move the foot of the guide anteriorly until it contact the cartilage/bone of the posterior condyle. TECHNIQUE TIP. You can use the Tension Gauge or the 8mm Flexion/Extension spacer to position the cutting guide against the femur.
Figure 27
There should be 2 mm - 3 mm of exposed bone above the anterior edge of the Femoral Cutting Guide. (Fig. 29)
Figure 28
Repeat with another Femoral Cutting Guide until the proper size is selected. If the condyle appears to be between two sizes, choose the smaller size. This helps prevent the patella from impinging on the prosthesis.
2 - 3 mm
Figure 29
PHYSICA ZUK Surgical Technique 17
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